Prepackaging unit for rayon yarn and the like



May 20, 1952 K. v. RQBINSON A2,597,377

PREPACKAGING UNIT FOR'RAYON YARN AND THE LIKE' Filed March 20, 1948 3 Sheets-Sheet 1 IN V EN TOR. KEN/V677! l. POB/601V MMM 2654441;

A v n v A v. v

May 20, 1952 K. v. RoBlNsoN 2,597,377

PREPACKAGING UNIT FOR RAYON YARN AND THE LIKE K. v. ROBINSON May 20, 1952 PREPACKAGING UNIT FOR RAYON YARN AND THE LIKE Filed March 20, 1948 I5 Sheets-Sheet 5 IN1/EN TOR.

TTRNEKS zap I! Patented May 2G, 1952 PREPACKAGING UNIT FOR RAYON YARN AND THE LIKE Kenneth V. Robinson, Atlanta, Ga., assignor to Atlanta Paper Company, a corporation. of

Georgia Application March 20, 1948, Serial No. 16,076'

Thisv invention relates to packaging means, and more particularly to a prepackaging unit adapted for use in shipping and storing Wound packages of rayon yarn and the like.

In. the process of manufacturing rayon yarn and the like, the nished yarn is commonly disposed as a Wound package supported on a tubular core for shipment to converters or for storage. The tubular supporting cores used may be parallel tubes, or they may be cones, depending on the intended use of the yarn or other similar circumstances in a particular case.

These wound packages of yarn must be handled with considerable care because the yarn is easily damaged by any contact with containers or with other wound packages during shipment or storage. It is accordingly usual practice to fit shipping or storage containers With partitions or other prepackaging means arranged for positioning the tubular supporting cores so that the Wound packages of yarn are held free of contact with the containers or with each other..

A number of arrangements for partitions or prepackaging means of this sort have heretofore been proposed. However, most of these prior arrangements have been found inadequate because they do not maintain the wound packages completely free of contact with the containers, particularly adjacent the ends of the tubular cores.

A further common disadvantage in prior arrangements has been the lack of a unitary construction Which has not only resulted in relatively high costs but has also rendered handling diicult.

According to the present invention I am able to form a prepackaging unit for Wound yarn packages from a single blank of paper board which may be used for prepackaging a group of the wound yarn packages as a self-contained unit. The prepackaging unit of the present invention may be adapted for use with tubular supporting cores in the form of either parallel tubes or cones, and incorporates means for positioning the tubular supporting cores positively against movement so that the wound yarn packages are maintained completely free of contact with the container or with each other. Also, the positioning means employed according to the present invention avoids any disturbance of the transfer tail commonly arranged at one end of the tubular cores, and when cones are used, it further provides protection for the nose of thecone.

2 Claims. (Cl. 229-87) Fig. 1 is a perspective view, partly cut away, showing, a prepackaging unit constructed in. accordance with the present invention and adapted for usevwith tubulary supporting cores the form of parallel tubes;

Fig.v 2 is. a vertical section taken substantially on the line 2-2 in Fig. 1;

Fig. 3' is a vertical section taken. substantially on the line 3--3 in Fig. 2;:

Fig. 4 is an. enlarged sectional detail showing the arrangement of the positioning meansy in the bottom wall portion;

Fig. 5 is a plan view of the. blank used. in forming the. prepackaging unit shown in Fig. 1:

Fig. 6 is a. transverse sectional detail illustrating the manner in which the blank shown in Fig. 5 is erected;

Fig. 7 is a perspective view showing a further embodiment of the prepackaging unit of the present invention in a form adapted for use with cones;

Fig. 8 is a plan View of the blank used in forming the prepackaging unit shown in Fig. '7;

Fig. 9 is a vertical section taken substantially on the line 9--9 in Fig. 7; and,

Figs.,10 and 1l are enlarged. sectional details of the positioning means arranged in the bottom wall portion and the top closure, respectively, of the prepackaging unit shown in Fig. 7.

Generally described, the prepackaging unitA of kthe present invention comprises a paper board structure formed with a bottom wall, opposed side walls, and a top closure, means being provided on the top closure and the bottom Wall for positioning the tubular cores carrying the wound packages of yarn as mentioned above.

An embpdiment of this prepackaging unit adapted for use when the Wound yarn packages l are carried on parallel tubes lll is illustrated in ""Ihe'prlesent invention sdescribedmore in ing' drawing; in which:

Fig. 1 of the drawing. The bottom Wall of the prepackaging unit is indicated in Fig. 1 by the numeral Il, and the opposed side walls by the numeral l2. The top closure in this case is formed by top half-laps I3.

The means provided on the top closure for positioning the parallel tubes I0 comprises positioning tabs t4 hinged in opposed relation on the top-half laps I3 for insertion in one end of the tubes I0, as illustrated more in detail in Figs. 2 and 3 of the drawing. Y

As also shown in Figs. 2 and 3, the further positioni-ng means on the bottom Awall Il comprises circular depressions l5 Ispaced in alignj ment 4witl'l the positioning tabs Nitot receiving and positioningthe other end of the parallel tubes I0. These circular depressions I5 are formed according to the present invention in the structural body of the paper board forming the bottom wall I I. For this purpose, the prepackaging unit of the present invention is preferably formed of corrugated paper board, so that the circular depressions I5 may be formed by crushing the inner liner I6 and corrugated filler I1 of the paper board forming the bottom wall I I at intervals in a circular (or annular, if desired) pattern against the outer liner I8, as illustrated best in Fig. 4 of the drawing. As the liners are secured to the filler by adhesive in the manufacture of corrugated paper board, the inner liner I6 and filler I1 may be crushed in this manner to form the circular depressions I5 without destroying the integrity of the paper board. Also, the nature of the corrugated ller I1 lends itself readily to crushing in the manner described above to form the circular depressions I5.

The formation of the circular depressions I5 in the structural body of the corrugated paper board forming the bottom wall |I allows the prepackaging unit of the present invention to be erected as a unitary structure from a single blank. The form of blank used for a prepackaging unit of the type illustrated in Fig. 1, is shown in Fig. 5 of the drawing. As shown, the bottom wall II is located at the central portion of this blank, and is defined by parallel bending scores I9. The side walls 2 are hinged on either side of the bottom wall portion at the bending scores I9 and extend to further bending scores 20. The top half-laps I3 are in turn hinged on the side walls I2 at the bending scores 20, and the positioning tabs |4 are hinged on the extending edges of the top half-laps I3 in opposed relation, as previously mentioned, these positioning tabs I4 being defined by bending scores 2|. The circular depressions I5 are formed in the bottom wall portion with the blank in the flat as shown in Fig. 5, so that the blank is complete and ready for erection to prepackage parallel tubes I carrying wound yarn packages.

The manner of erecting the blank shown in Fig. to form a prepackaging unit is illustrated in Fig. 6. With the blank laid ilat and the parallel tubes I0 located in the circular depressions I5 formed in the bottom wall I I to receive and position the tubes I0, the side walls |2 are folded upward, and the top half-laps I3 inward so that their extending edges meet to form a top closure. As this is done, the positioning tabs |4 are folded downward and inserted in the top ends of the parallel tubes |0. These positioning tabs I4 may be made in a width such that they will grip the inside walls of the tubes I0 so that they are retained in place and thus hold the prepackagtion of the blank defined by the parallel bending scores |05, which also provide hinge points for the opposed side vwalls |02 on either side of the bottom wall |0|. 'The side walls |02 extendfrom the bending scores `|05 to further bendingscores |08 at which the inner and outer top full-laps |03 and |04, respectively, are hinged. The inner top full-lap |03 is formed near its bending score |03 with spaced slots |01, and the outer top full-lap |04 carries tab portions |08 dened by bending scores |09 at its extending edge in alignment with the slots |01. The tab portions |08 are accordingly Vadapted for insertion in the slots |01 to secure the prepackaging unit in erected position as illustrated in Fig. 7. The inner and outer top full laps |03 and |04 are preferably further formed with registering finger holes ||0 and end notches for convenience in handling the prepackaging unit when in erected position.

The arrangement of the means for positioning the cones |00 in the prepackaging unit shown in Fig. '1 is illustrated in detail in Figs. 9, 10, and 11 of the drawing. As in the first embodiment previously described above, this arrangement comprises circular depressions ||2 for receiving and positioning the bottom end of the cones |00 formed in the bottom wall |0| by crushing the inner liner ||3 and the corrugated filler ||4 of the paper board forming the bottom wall |0| in a circular pattern against the outer liner H5. (Compare Figs. 9 and 10.) The circular depressions ||2 formed in this manner are spaced lengthwise in the bottom wall |0| as indicated in Figs. '7 and 8.

The positioning -means for the top end of the cones |00 comprises apertures ||6 in the inner top full-lap |03 which are aligned with the circular depressions II2, and which are proportioned to receive the tip of the cones |00, as shown in Figs. 9 and 1l. The cones |00, however, are usually formed at their tip with a nose |1 which is rounded, and which often is polished or coated, to facilitate withdrawal of yarn from packages wound on the cones. Because of this rounded form of the nose ||1, it will protrude to some extent through the apertures ||6 in the inner top full-lap |03 no matter how closely the apertures I|5 are proportioned to the size of the tip of the cones -|00. Accordingly, to avoid marring or other damage to the nose ||1 of the cones |00, the outer top full-lap |04 is also formed with circular depressions ||8 registering with the apertures I I5 to accommodate the protruding disposition of the nose I1. As will be seen from a comparison of Figs. l0 and l1, the circular depressions I8 in the outer top full lap |04 are formed in exactly the same manner, except for size, as the circular depressions ||2 in the bottom wall |0|.

A prepackaging unit constructed as described above in accordance with the present invention provides positioning means which are complete and do not depend on association with other prepackaging units for positioning the wound yarn packages. Moreover, because the positioning means provided is complete, the wound yarn packages are independently supported in each prepackaging unit free of contact with the walls of the unit or with each other. Also, as the prepackaging unit of the present invention is arranged as a unitary structure for erection from a single blank, it provides substantial reductions in material and handling costs.

It will be understood that the embodiments of the prepack-aging unit of the present invention described above are only illustrative examples, and that the particular features of each embodi- Sfinent may be used interchangeably and in various L combinations within the scope of the present 'invention as dened by the appendedclams.

I claim:

1. A one-piece paperboard blank adapted for forming a unitary prepackaging unit for Wound packages forV rayon yarn and the like carried on cones and by which said packages may be completely contained in spaced relation and positioned at both ends against both longitudinal and lateral movement, said Iblank being formed of corrugated paperboard and having parallel bending scores dening a single bottom Wall, opposed side walls hinged on said single bottom Wall, and top full-laps hinged on said opposed side Walls, the inner top full-lap being formed with spaced apertures for receiving the small end of said cones, and the inner liner and corrugated filler of the paperboard forming the outer top full-lap and said single bottom wall being crushed at aligned intervalvs in a circular patternagainst the outer liners thereof, and thereby forming spaced circular depressions serving, respectively, for receive ing and protecting the nose of vsaid cones, and for receiving and positioning the large end of said cones.

2. A one-piece paperboard blank adapted for forming a unitary prepackaging unit as dened in claim 1 and further characterized in that at least one hinged tab is carried at the free extending edge of said outer top full-lap, and an aligned slot is formed at the hinged edge o-f said inner top full-lap for receiving said hinged tab to secure said .prepackaging unit in erect position.

KENNETH V. ROBINSON.

REFERENCES CITED The following references are of record in the le of this patent:

UNITED STATES PATENTS Number Name Date 1,828,837 Gagen Oct. 27, 1931 1,829,942 Pettibone Nov. 3, 1931 1,850,714 Gaylord Mar. 22, 1932 2,110,480 Barlow Mar. 8, 1938 2,226,603 Gagen Dec. 31, 1940 2,408,159 Boh Sept. 24, 1946 

